Motic RED 200 Series, Instruction Manual

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18
RED 200 SERIES
4. MAINTENANCE & TROUBLESHOOTING
4.1 Maintenance
The biological microscope is limited to the following maintenance only:
• Turn off the power switch after use, and put on the dustproof cover after the microscope has cooled down.
• Do not operate the microscope in a room with humidity higher than 75%.
• Remove dust or ordinary dirt on optical lens surfaces with a brush, rubber suction bulb and a moistened lens tissue.
• Use only optical lens tissues and optical lens cleaner (see below). Never clean a lens with a dry optical lens tissue.
Be sure to remove any dust before using lens tissue and cleaner.
• To remove stubborn oily or lipoid dirt (such as immersion oil or fingerprints), dip the lens tissue into a 3 to 7
ethanol-ether mixture or a commercially available optical lens cleaning solution and then use it to wipe off the dirt.
• When cleaning an optical lens surface, wipe gently in a circle from the center to the edge.
4.2 Troubleshooting
Problem Cause Remedy
Can not see
the whole field Nosepiece is not locked into the slot Rotate the nosepiece to lock into the slot
Condenser is not set properly Set the condenser properly
Aperture (iris) diaphragm is not set accu-
rately Set the aperture (iris) diaphragm accurately
Low resolution
Poor image contrast Incorrect opening of aperture diaphragm Set the opening of aperture diaphragm
accurately
Improper focusing of condenser Focus the condenser properly
Wrong thickness of cover slip for 0.17
transmitted-light objective Use the standard 0.17 thick cover slip
No immersion oil or non-specified immer-
sion oil for 100X/(oil immersion) objective Use immersion oil supplied with the instru-
ment or go to buy cedar oil for microscope
when supplied immersion oil used up
Bubbles in the immersion oil Add some immersion oil or rotate the nose-
piece back and forth to remove bubbles
Immersion oil or stain left on the front lens
of dry objective
Dirt or dust on the optical surface of objec-
tive, eyepiece, condenser or color filter Clean the front lens of dry objective
(see above)
Clean the dirty optical component
Poor LED
illumination Power plug is not plugged into the socket
properly Insert the power plug into the socket and
turn on the power
LED illuminator damaged Replace LED illuminator